AT&S is a leading global manufacturer of high-end IC substrates and printed circuit boards. AT&S industrializes leading-edge technologies for its core business segments Mobile Devices & Substrates, Automotive & Aerospace, Industrial and Medical and high-performance computing for AI applications. We are looking for talent eager to shape the future of our interconnected world. With plants in Austria, China, India, Malaysia and sales offices around the globe, we offer excellent career opportunities for creators, innovators and enablers with the drive to make a difference.To enhance our successful IT/OT Infrastructure Engineer Team at the Headquarters in Leoben, Austria, we are looking for a passionate IT-Operational Technology Infrastructure Engineer (f/m/d) As the IT/OT Technology Infrastructure Engineer, you will be responsible for maintaining and operating IT/OT infrastructure in a live production environment in order to ensure system reliability, support shopfloor users, and contribute to the secure and efficient operation of our production systems. Analyze cost drivers and inefficiencies across sites and units Simulate financial impact of strategic and operational decisions Benchmark performance to identify gaps and best practices Monitor cost structure and variance (actual vs. plan/benchmark) Maintain strict deviation tracking and escalate unresolved gaps Propose targeted measures to reduce COGS and improve profitability Provide independent, objective financial steering and benchmark-based transparency Monitor financial gaps, escalate unresolved issues, and drive accountability for closure Bachelor's degree in IT, Computer Science, or a related field. Minimum 5 years of professional IT experience, ideally in industrial environments. Strong knowledge of IT infrastructure (Windows/Linux, networks, storage). Familiarity with ITSM tools (e.g., ServiceNow, Jira). Understanding of cybersecurity principles and compliance standards. Basic knowledge of virtualization and Active Directory. Fluent in German and English (spoken and written). Willingness to support 24/7 environments and participate in on-call rotations. Team-oriented, proactive, and capable of working independently. A meaningful role with opportunities for long-term growth in an international environment Chance to actively contribute to AT&S´ success and to create value A structured and tailor-made onboarding program along with continual training opportunities We also offer Modern company canteen with freshly prepared meals every day Free parking spaces and e-charging stations Diverse health measures and a wide range of employee benefits JBRP1_AT